Flushometer relief valve

Details Flushometer relief valve Flushometer relief valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/8

F16K 31/145 (2006.01) E03D 3/06 (2006.01)

Patent

CA 1316898

IMPROVEMENTS IN FLUSHOMETER RELIEF VALVE Abstract of the Disclosure This invention relates to a flexible diaphragm assem- bly for use in a flush valve having a hollow body, an inlet, an outlet, a valve seat formed in the body between the inlet and outlet, and an operating handle assembly. The diaphragm assem- bly includes a diaphragm adapted to be peripherally attached to the flush valve body and a barrel integral with the diaphragm. The barrel has a seal member on its exterior positioned for sealing engagement with the body valve seat. There is an annu- lar valve seat on the interior of the barrel and a relief valve is positioned within the barrel and has a seat portion positioned to close upon the barrel valve seat. The relief valve has an annular flexible lip in contact with the interior of the barrel and spaced from the relief valve seat portion. The relief valve further has a stem extending outwardly from the barrel and positioned for contact by the flush valve handle assembly.

605611

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